The reason why Chinese make it so clear is that in the long history of China, there are 2000 years that China is a feudal society. A feudal society is highly hierarchical.

Most wedding ceremony is in hotel room in the USA. In China, most ceremony is in the new couple's home. The bedroom of the new couple's home is called cave room. Right after the ceremony, the bride should go into the cave room. The broom can not go there until all guest left.

Esau took his wives of the daughters of Canaan; Adah the daughter of Elon the Hittite, and Aholibamah the daughter of Anah the daughter of Zibeon the Hivite;

Uncles of your mother should be called Jiu. Chinese does not differ elder brother and younger brother of mother side.

Grandfather means father of mother or father. In Chinese father of your father is called Ye Ye. Father of your mother is called Lao Ye or Wai Gong.

And Aholibamah bare Jeush, and Jaalam, and these are the sons of Esau, which were born unto him in the land of Canaan.

The wedding custom is different even at different village near to each other in China. Of course, they are similar. But it is very often that people are confused in a wedding a few miles away from home.

And Adah bare to Esau Eliphaz; and Bashemath bare Reuel;

The bride will go to meet the broom's relatives. If the bride know one relative of the broom, she should call the relative the same thing as the broom starting at that moment.

In China, one can not call the name of a family member. For example, you can not call your dad his name. You can only mention his name to other people outside of your family. You can not call your elder sister or brother their name either. In Chinese, elder brother and younger brother are two different words. And the the elder sister and older sister are also two different words.

Wedding ceremony is different fr

Wedding ceremony is different from place to place. But for most place, the ceremony include a person announce the broom and bride as a couple.

In English, uncle means the brother of your father or mother. But in Chinese, brothers of your father or mother are made very clear. If a person is an elder brother of your father, you should call him Bo Fu or Da Ye. If a person is a younger brother of your father, you should call him Shu Shu.